Tommy Bond has walked the worst career walks per nine innings, with 0.58 BB/9.

Interpreted as:

lowest bb/9 with a minimum of 1500 IP by a player of all-time

	NAME	BB/9	IP	G	W	L	W%	GS	ERA	SO	CG	SHO	SV	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Tommy Bond T. Bond	0.58	2779.2	322	193	115	.627	314	2.25	860	294	35	0	2,857	695	1,339	32	178		11		11,386	120	2.78	4.83	0.10	7.6	1.6	1.09	.274	4.34	89	2.38	95	9.25	32.3
2	George Bradley G. Bradley	0.67	2404.1	287	138	125	.525	265	2.50	611	245	28	2	2,469	668	1,392	42	179		22		10,119	166	2.29	3.41	0.16	6.0	1.8	1.10		5.21	92	2.68	103	9.24	-36.8
3	Terry Larkin T. Larkin	0.71	1567.1	176	89	80	.527	176	2.43	406	172	9	0	1,627	424	922	12	124		0		6,659	84	2.33	3.27	0.07	6.1	1.9	1.12		5.29	97	2.52	100	9.34	-7.4
4	John Ward J. Ward	0.92	2469.2	293	164	103	.614	262	2.10	920	245	24	3	2,324	576	1,185	26	253		32		10,164	144	3.35	3.64	0.09	9.1	2.5	1.04		4.32	82	2.43	96	8.47	9.1
5	Fred Goldsmith F. Goldsmith	0.96	1609.2	189	112	68	.622	185	2.73	433	174	16	1	1,685	488	884	38	171		3		6,765	57	2.42	2.53	0.21	6.4	2.5	1.15	.269	4.94	91	2.99	99	9.42	18.9
6	Jim Whitney J. Whitney	1.06	3496.1	413	191	204	.484	396	2.97	1,571	377	26	2	3,598	1,154	2,026	79	411	28	16		14,666	214	4.04	3.82	0.20	10.7	2.8	1.15	.280	5.22	96	2.75	87	9.26	148.2
7	Bobby Mathews B. Mathews	1.11	2734.1	323	166	136	.550	315	3.00	1,199	289	10	3	3,008	910	1,758	50	336	3	8		11,889	130	3.95	3.57	0.16	10.1	2.8	1.22	.288	5.79	102	2.65	91	9.90	86.2
8	Pud Galvin P. Galvin	1.13	5941.1	697	361	308	.540	681	2.87	1,799	639	57	1	6,352	1,895	3,315	121	744	54	18		25,160	220	2.73	2.42	0.18	7.2	3.0	1.19	.278	5.02	94	2.97	95	9.62	94.5
9	Deacon Phillippe D. Phillippe	1.25	2607.0	372	189	109	.634	289	2.59	929	242	27	12	2,518	749	1,071	41	363	59	72		10,380	45	3.21	2.56	0.14	8.9	3.5	1.11	.276	3.70	85	2.60	82	8.69	156.8
10	Will White W. White	1.26	3542.2	403	229	166	.580	402	2.28	1,041	394	36	0	3,440	896	1,844	65	496		1		14,951	221	2.64	2.10	0.17	7.0	3.3	1.11	.254	4.68	83	2.98	108	8.74	-109.3
11	Babe Adams B. Adams	1.29	2995.1	482	194	140	.581	354	2.76	1,036	205	44	16	2,841	917	1,133	67	430	47	90		11,947	26	3.11	2.41	0.20	8.7	3.6	1.09	.268	3.40	86	2.72	83	8.54	178.7
12	Jack Lynch J. Lynch	1.38	1924.1	221	110	105	.512	216	3.69	859	214	8	0	2,048	789	1,224	54	295	4	5		8,215	138	4.02	2.91	0.25	10.5	3.6	1.22	.286	5.72	112	3.08	96	9.58	13.7
13	Addie Joss A. Joss	1.41	2327.0	286	160	97	.623	260	1.89	920	234	45	5	1,888	488	730	19	364	58	22		8,891	28	3.56	2.53	0.07	10.3	4.1	0.97	.248	2.82	70	2.25	86	7.30	88.8
14	Bob Tewksbury B. Tewksbury	1.45	1807.0	302	110	102	.519	277	3.92	812	31	7	1	2,043	787	884	142	292	41	8	22	7,623	24	4.04	2.78	0.71	10.7	3.8	1.29	.300	4.40	95	3.64	89	10.18	89.8
15	Cy Young C. Young	1.49	7356.0	906	511	316	.618	815	2.63	2,803	749	76	17	7,092	2,147	3,167	138	1,217	161	84		29,565	156	3.43	2.30	0.17	9.5	4.1	1.13	.275	3.87	74	2.84	79	8.68	620
16	Guy Hecker G. Hecker	1.51	2924.0	336	175	146	.545	322	2.93	1,110	312	15	1	2,922	951	1,726	50	492	28	13		12,415	128	3.42	2.26	0.15	8.9	4.0	1.17	.269	5.31	86	3.12	94	8.99	50.1
17	Lee Richmond L. Richmond	1.53	1583.0	191	75	100	.429	179	3.06	552	161	8	3	1,763	538	1,018	27	269		13		6,821	87	3.14	2.05	0.15	8.1	3.9	1.28	.291	5.79	106	2.73	96	10.02	39.4
18	Jesse Tannehill J. Tannehill	1.56	2759.1	359	197	117	.627	321	2.80	944	264	34	7	2,794	858	1,199	40	478	130	37		11,236	28	3.08	1.97	0.13	8.4	4.3	1.19	.286	3.91	89	2.86	91	9.11	95.2
19	Jim McCormick J. McCormick	1.58	4275.2	492	265	214	.553	485	2.43	1,704	466	33	1	4,092	1,155	2,095	82	749	12	7		17,702	160	3.59	2.28	0.17	9.6	4.2	1.13	.265	4.41	86	2.88	100	8.61	-32.7
20	Christy Mathewson C. Mathewson	1.59	4788.2	636	373	188	.665	552	2.13	2,507	435	79	30	4,219	1,135	1,620	89	848	59	73		18,913	115	4.71	2.96	0.17	13.3	4.5	1.06	.268	3.04	75	2.26	76	7.93	363
21	Red Lucas R. Lucas	1.61	2542.0	396	157	135	.538	302	3.72	602	204	22	7	2,736	1,051	1,203	136	455	22	71		10,651	7	2.13	1.32	0.48	5.7	4.3	1.26	.276	4.26	95	3.86	97	9.69	36
22	Nick Altrock N. Altrock	1.62	1514.0	218	83	75	.525	161	2.67	425	128	16	7	1,455	449	600	16	272	22	45		6,016	31	2.53	1.56	0.10	7.1	4.5	1.14	.272	3.57	104	2.56	103	8.65	-22.3
23	Brad Radke B. Radke	1.63	2451.0	378	148	139	.516	377	4.22	1,467	37	10	0	2,643	1,150	1,233	326	445	62	0	12	10,244	28	5.39	3.30	1.20	14.3	4.3	1.26	.292	4.53	90	4.24	94	9.71	75.2
24	Grover Alexander G. Alexander	1.65	5190.0	696	373	208	.642	600	2.56	2,198	436	90	32	4,868	1,476	1,852	165	951	70	81		20,893	38	3.81	2.31	0.29	10.5	4.6	1.12	.269	3.21	73	2.88	81	8.44	359.1
25	Jumbo McGinnis J. McGinnis	1.65	1603.2	187	102	79	.564	186	2.95	562	177	18	0	1,572	525	958	21	294	8	1		6,806	135	3.15	1.91	0.12	8.3	4.3	1.16	.264	5.38	90	3.19	98	8.82	16